Megazoids had some distinctive facial features, though their most distinguishing characteristic was their large, unusually-shaped, webbed feet, which made it impossible for them to wear the same footwear as most humanoids. This species apparently did not have footwear of its own either, making their feet that much more noticeable. (Star Trek VI: The Undiscovered Country)

The name of Dax' species came from the official Paramount script of the movie. The novelization gave the species name as "Zeosian".